Actuating mechanism for glands for stuffing-boxes.



E. J. PITHI'AN L H. D. MURRAY. l AGTUATING MEGHANISM FOR GLANDS FOR STUFFING BOXES.

APPLIUATION FILED 0014.1911.

Patented Dec. 24, 1912.

2 Sunni-SHEET 1.

A UNITED STATES PATENT OFFICE.

EDWIN .'r. FI'I'IIIAN AND HARRY n. MURRAY, oF -GnovE CITY, PENNSYLVANIA, AssIoNons To THE BEssEMER. GAS ENGINE coMrANY, or GROVE cI'rY, PENNSYL- VvANIA, A 'CORPORATION or PENNSYLVANIA.

:ACTUATING MECHANISM FOB GLrANDS FOB STUFING-BOxE-S.

Speciilcation of Letters Patent.

Application led October 4, 1911. Serial No. 852,782.

Patented Dc.'24,1912.

To' all whom it may concern:

B e it known that we, EDWIN J. FITIIIAN and HARRY D. MURRAY, citizens of' the United States, residing at Grove City, in the county of Mercer and State of Penn- Sylvania, have invented new and useful Improvements in Actuat-ing Mechanism for Glands for stutiingoxes, ofwhich the following is a specification.

' This invent-ion relates to actuating mechanism for glands for stuffing boxes and consists in certain improvements'in the constructionthereof as will be hereinafter `fully described and pointed out inthe claims.

The invention is particularly adapted to adjusting the gland in stuiiing'boxes which are inclosed, as for instance, in the cylinder head of an engine wherein the stutiing box is inclosed-by the frame. Under such conditions vit is diiicultto get at the gland to ad' just it, and the principal object of this invention is to provide a convenient mechanism for adjusting the gland of an inclo'sed stuffing box.

Th`e invention is illustrated in the accompanying drawings as follows Figure 1 shows a central section (line 1--1 in Fig. 3) of a fragmentof an engine including a part of the frame, cylinder, and cylinder head witha stutling box in place thereon. Fig. 2 a plan view of the gland for the operating shaft. Fig. 3 a front elevation of the gland and adjacent parts. Fig. 4 is a central section (line 4*#4 in Fig.`

5) vsimilar to Fig. 1 but showing an alternative construct-ion. Fig. 5 is a front eleva tion of the gland and adjacent parts shown in Fig. 4.

1 marks the engnecylinder, 2 the cylinder head, 3 the engine'frame, the engine frame being arranged to form a closure 4, 5 the piston rod, and 6 the stuing Ibox. These parts are of usual construction.

The gland7 is arranged to operate in the stuiiing box. It is provided with an ex terior screw thread on which operates a nut 8. The nut has the inwardly extending flange 9 at the end nearest the cylinder which is engaged by a collar 10. The collar 10 is secured on the end of the stuing box by means of studs. 11. The studs 11 prefera ly extend outwardly into the perforations 12 so that they not only secure the collar 10 but also serve to lock the glands 7 against Linder head. A shaft 18 is fixed in the gear 15 and extends to a perforation 19 in theframe. A stufling box 20 is arranged in the frameand provided with a gland 21 which is secured on to the frame. A crank 22 is arranged on the shaft Without the frame. fIhe crank 22 has. a squared head 23 which 1s adapted to drop into a square receptacle 24 in the upper surface of the gland 21.

To adjust the gland all that is necessary is to lift the crank 22 out of the .socket 24 and turn the shaft 18. This turning of the shaft 18 through the gears 15 and 14 rotates the nut 8 on the gland so as to move the gland to the position of adjustment deslred. When the gland is properly adjusted, the squared head 23 of the crank is allowed to drop into the receptacle 24, thus locking lthe shaft18 against turning and in consequence locking the gland in adjustment.

In the alternative constructionV instead of yusing the beveled gears as shown in the preferred construction, a worm gear connection is used. The nut 8 is provided with a worm gear 25 which is engaged by the worm 26. The worm 26 is carried by a shaft 27 and the shaft is journaled in studs 28 extending from the head of the frame. The shaft 27 extends to without the frame in the same manner as the shaft 18 and is actuated by the crank in the same manner as the shaft 18.

What-is claimed as new is 1. In an actuating mechanism for glands for stulingboxes, the combination of a gland having a screw thread thereon; a nut on the screw thread; meansfor locking the gland against turning; a closure for the gland; and means for actuating the nut from with- 'out the closure.

2. In an actuating mechanism for glands for stuing boxes, the combination of a gland having a screw thread thereon; a nut on the screw thread; means for locking the gland against turning; a closure for the gland; an actuating shaft extending without the closure; and a gear connection between the shaft and nut.

` 3. In an actuating mechanism for glands for stuing boxes, the` combination of a.

a gland having a screw thread thereon; a nut on the screw thread having an internal flange; a collar arranged on the ange for securing the nut; studs for securing the c ,llar, said studs extending into the gland an`d locking the gland against turning; and means for actuating the nut.

4. In an actuating mechanism for glands for stuiiing boxes, the combinatiom of a gland; a closure for the gland; a screw for actuating the gland; a shaft extending with- 'out the closure; a gear connection'ibetween the shaft and screw for actuating the screw; and neans operatin on the shaft for locking the glandY in ad]ustment.

5. In an actuating mechanlsm for Aglands for stuiiing boxes, the combination of a. glandfa screw for adjusting the gland; a closure for the gland; fa' shaft extending without the closure; a. connection between the shaft and gland for actuating the gland with the shaft; a crank on the shat;'and means on the crank for locking the shaft in adjustment.

In testimony ,whereof we have hereunto set our hands in the presence of two subscribing witnesses.

` f EDWIN-J. FITHIAN.

HARRY D. MURRAY. Witnesses:

C. F.y FITHIAN, JOHN CARRUTHERS. 

